Which of the following is true of the ionosphere?
A) It extends through the troposphere into the stratosphere.
B) It is being depleted through interactions with human-produced chlorofluorocarbons.
C) The region principally absorbs gamma rays, X-rays, and interacts with the solar wind.
D) All radio signals pass through this region virtually unaffected.
E) It primarily absorbs harmful infrared wavelengths.
C
You might also like to view...
Which of the following conditions causes hypoxia?
A. rapid change in atmospheric pressure B. extreme cold C. combined effects of heat and humidity D. lack of oxygen to the brain
What are the different types of water masses? What is the most distinctive water mass? Give the
characteristics and behaviors of that water mass. What will be an ideal response?
The special symbol to indicate a strike on a geologic map is a ____
A)short line oriented at 90 degrees from the strike direction B)short line oriented at 45 degrees from the strike direction C)short line parallel to the strike direction D)long line oriented in the appropriate compass direction E)long line oriented toward north
Most of the public health impacts from air pollution are the result of
A) acute exposure to a single pollutant. B) acute exposure to many pollutants. C) chronic exposure to a single pollutant. D) chronic exposure to many pollutants.